Table 1.

Characteristics of participants in the discovery stage

Characteristics	N (%) or mean ± SD
Women (N, %)	3260 (62.01)
Mean age (years)	57.18 ± 8.97
Current smoker (N, %)	1041 (19.80)
RBC count (1012 cells/l)	4.26 ± 0.47
Hb (g/l)	132.48 ± 17.12
Hct (%)	39.81 ± 4.47
MCH (pg)	31.02 ± 2.22
MCHC (%)	331.85 ± 13.16
MCV (fl)	93.58 ± 5.13
RDWCV	13.99 ± 0.65
WBC (109 cells/l)	6.19 ± 1.59
GRAN (109 cells/l)	3.78 ± 1.24
LYMPH (109 cells/l)	1.95 ± 0.63
PLT (109 cells/l)	210.15 ± 49.30
MPV (fl)	8.10 ± 0.71

Values for age and each hematological trait are presented as mean ± SD. PLT, platelet count; SD, standard deviation.